135215204 has 12 divisors (see below), whose sum is σ = 236780544. Its totient is φ = 67563624.

The previous prime is 135215173. The next prime is 135215231. The reversal of 135215204 is 402512531.

It is a self number, because there is not a number n which added to its sum of digits gives 135215204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3512 + ... + 16815.

It is an arithmetic number, because the mean of its divisors is an integer number (19731712).

Almost surely, 2^135215204 is an apocalyptic number.

It is an amenable number.

135215204 is a deficient number, since it is larger than the sum of its proper divisors (101565340).

135215204 is a wasteful number, since it uses less digits than its factorization.

135215204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21994 (or 21992 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 135215204 is about 11628.2072564949. The cubic root of 135215204 is about 513.2652271857.

Adding to 135215204 its reverse (402512531), we get a palindrome (537727735).

The spelling of 135215204 in words is "one hundred thirty-five million, two hundred fifteen thousand, two hundred four".